microblaze: Wire up axi_ethernet driver initialization

Initialize axi_ethernet driver.

Signed-off-by: Michal Simek <monstr@monstr.eu>
diff --git a/board/xilinx/microblaze-generic/microblaze-generic.c b/board/xilinx/microblaze-generic/microblaze-generic.c
index 9b2952f..c4c13a6 100644
--- a/board/xilinx/microblaze-generic/microblaze-generic.c
+++ b/board/xilinx/microblaze-generic/microblaze-generic.c
@@ -72,6 +72,12 @@
 int board_eth_init(bd_t *bis)
 {
 	int ret = 0;
+
+#ifdef CONFIG_XILINX_AXIEMAC
+	ret |= xilinx_axiemac_initialize(bis, XILINX_AXIEMAC_BASEADDR,
+						XILINX_AXIDMA_BASEADDR);
+#endif
+
 #ifdef CONFIG_XILINX_EMACLITE
 	u32 txpp = 0;
 	u32 rxpp = 0;